Tokyo Electric Power Co. said Thursday it will suspend operations of the No. 6 reactor at the Kashiwazaki-Kariwa nuclear power plant in Niigata Prefecture on March 26 for a periodic check, a plan that will take all of its 17 reactors out of service, Kyodo News reported.

The No. 6 reactor with a power output of 1.356 million kilowatts is the last to be suspended out of the plant’s seven reactors.

It will be the first time all 17 units have been halted since the April 15-May 6 period of 2002, when they were suspended after a public outcry over revelations that TEPCO had hidden problems at its nuclear plants.

Out of the seven at the Kashiwazaki-Kariwa plant, the No. 1, No. 2, No. 3 and No. 4 as well as the No. 7 reactors have been suspended as a result of periodic checkups and a 2007 earthquake that badly damaged the prefecture and its vicinity.